CN1322292A - Air curtain fan driving device and method for refrigerator - Google Patents
Air curtain fan driving device and method for refrigeratorInfo
- Publication number
- CN1322292A CN1322292A CN98814294A CN98814294A CN1322292A CN 1322292 A CN1322292 A CN 1322292A CN 98814294 A CN98814294 A CN 98814294A CN 98814294 A CN98814294 A CN 98814294A CN 1322292 A CN1322292 A CN 1322292A
- Authority
- CN
- China
- Prior art keywords
- air curtain
- temperature
- curtain fan
- refrigerator
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/023—Air curtain closures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/02—Sensors detecting door opening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
Abstract
A reference temperature of the cooler is set which is required to moderate an interior temperature of the refrigerator. During a defrosting mode, if a door is opened, then a control part switches on an air curtain fan if a temperature of a cooler is lower than the reference temperature, or switches it off if it is not lower. The control part switches off the air curtain fan when the door is closed. Meanwhile, during the defrosting mode, if the door is closed, then the control part switches on the air curtain fan if the temperature of the cooler is lower than the reference temperature in a heating state, or switches it off if it is not lower. The air curtain fan is also switched off if it is not in a heating state. Thus, the air curtain fan is driven depending on interior and exterior conditions during a defrosting operation of the refrigerator. Thereby, refrigerating efficiency as well as defrosting efficiency are increased.
Description
Technical field
The present invention relates to refrigerator, particularly during the defrost operation of refrigerator, drive air curtain fan (air curtain fan) drive unit and the method for air curtain fan according to inside and external condition.
Background technology
Usually, the normal running of refrigerator, its mode of operation can change the type of cooling of cooling refrigerator inside into or remove the Defrost mode that is formed on the frost on the cooler.
The at first cyclic process of cold-producing medium in the refrigerator, when the high temperature and high pressure gaseous refrigerant that compressor produces passed through condenser, this gaseous refrigerant was delivered to the outside with its heat, is converted into liquid refrigerant simultaneously.After this liquid refrigerant that still has high pressure is again by drier, and drier is removed impurity and the moisture in the middle of the liquid refrigerant, and free from foreign meter and liquid refrigerant moisture flow in the capillary.Flow through this liquid refrigerant expansion becoming gas-liquid mixed state that is easy to evaporate capillaceous, the heat around absorbing makes cold-producing medium get back to its original state.Therefore, cold-producing medium circulates repeatedly, becomes the cooling source of the gas in the refrigerator.
Simultaneously, during the cooling down operation of refrigerator, because refrigerator temperature changes when opening refrigerator doors, so can on cooler, form white.The frost amount was determined by the opening time of keeping of operating time, external temperature, the frequency of opening the door of refrigerator, outside humidity and the refrigerator doors of compressor.The frost that is formed on the cooler can cause cooling effectiveness to descend.
Therefore, when the frost amount that forms surpassed scheduled volume, the microprocessor of refrigerator made it be converted to Defrost mode.Defrost mode comprises pre-cooled step, heating steps, compressor pause step and cooling fan pause step.Pre-cooled step is used for reducing the temperature of cold compartment of refrigerator and refrigerating chamber before driving heater.Heating steps is used to finish defrost operation.The compressor pause step is used to make compressor drive to suspend to avoid it overheated.The cooling fan pause step is used to make the cooling fan driver to suspend, and ends when cooler is cooled to predetermined temperature.
During the refrigerator operation, if because cold compartment of refrigerator transships and refrigerating-chamber door is opened, extraneous air flow into and can cause all in the refrigerating chamber that internal temperature of refrigerator rises.At this moment, for the internal temperature that makes refrigerating chamber returns to normal condition, in recent years, be to solve this problem by an air curtain fan is installed in refrigerating chamber.
Licensed on November 23rd, 1993 in No. the 5263332nd, the United States Patent (USP) of Mr.Park and disclose a kind of refrigerator temperature control method, when refrigerator doors is opened, keep stablizing shortening cool time by making temperature fluctuation.This patent comprises that control compressor and fan normal running are so that the internal temperature of refrigerator remains on the step (being known as " normal operation step ") on the user preset fixed temperature.In the control step of opening the door, opening if detect refrigerator doors, then close fan, calculate the refrigerator open time of going out and closing up to detection.Afterwards, closed if detect refrigerator doors, then the temperature reset process restarts normal operation step after presetting temperature automatically reseting to according to time of calculating.Whether temperature resetted during the reset temperature operating procedure was judged normal operation step.If temperature resets, then drive compression machine and fan carry out cooling down operation, when temperature reaches reset temperature till.Afterwards, the reset temperature operating procedure restarts normal operation step.Because the internal temperature that influenced by extraneous air can promptly settle out after refrigerator doors is shut, so the patent of Mr.Park focuses on the efficient of food preservation and refrigerator.
Below, the air curtain fan drive unit of 1 pair of routine with reference to the accompanying drawings is elaborated.Shown in the view of Fig. 1 is the air curtain fan drive unit of a routine.This routine air curtain fan drive unit 10 comprises air curtain fan 100, Temperature Detector 102, compressor 104, compressor drive 106, cooling fan 108, cooling fan driver 110, air curtain fan driver 112 and controller 114.
Below, the operation of conventional air curtain fan drive unit is elaborated.
Fig. 2 is the flow chart that is used for the operation of key diagram 1 conventional air curtain fan drive unit.
When connecting power supply, controller 114 utilizes compressor drive 106 and cooling fan driver 110 to come drive compression machine 104 and cooling fan 108 respectively, to carry out normal cooling down operation (step S201).Temperature Detector 102 detects the internal temperature T1 (step S202) of refrigerator under the control of controller 114.The internal temperature T1 that detects is sent in the controller 114 again.Controller 114 judges by Temperature Detector 102 detected temperature T 1 whether be normal temperature (step S203).If being detected internal temperature T1, the judged result of step S203 is below or above normal temperature, then driven compressor 106 drive compression machine 104 (step S204) under the control of controller 114.Afterwards, cooling fan driver 108 and air curtain fan driver 112 drive cooling fan 108 and air curtain fan 100 (step S205) respectively under the control of controller 114.In step S206, controller judges once more whether Temperature Detector 102 detected internal temperature T1 are normal temperatures, if the judged result of step S206 shows detected internal temperature T1 and is below or above normal temperature, then carry out step S204 again.
Simultaneously, be normal temperature if judge detected internal temperature T1, then controller 114 makes refrigerator carry out normal cooling down operation (step S207).
The internal state of refrigerator utilizes above-mentioned conventional method, no matter how, no matter promptly mode of operation is the type of cooling or Defrost mode, when opening refrigerator doors, all will drive air curtain fan.
When refrigerator doors is opened, even under Defrost mode, also will drive air curtain fan.That is to say that in the heating steps of Defrost mode, the temperature of cooler may be higher than the temperature that requires in the normal cooling down operation process.If air curtain fan is operated in this case, then the air of the higher temperature by cooler will flow in refrigerating chamber and the refrigerating chamber, cause the decline of cooling effectiveness.
General introduction of the present invention
One object of the present invention is to provide a kind of air curtain fan drive unit that is used for refrigerator, and this air curtain fan drive unit is used for that the inside and outside condition according to refrigerator drives air curtain fan during the defrost operation of refrigerator.
Another object of the present invention is to provide a kind of air curtain fan driving method that is used for refrigerator, and this air curtain fan driving method is used for that the inside and outside condition according to refrigerator drives air curtain fan during the defrost operation of refrigerator.
To achieve these goals, air curtain fan drive unit of the present invention comprises the door open-close detection part, and chiller temperature is determined parts, heater block, driven compressor parts, cooling fan driver part, air curtain fan driver part and control assembly.
The door open-close detection part detects the on off state of refrigerator doors.Chiller temperature determines that parts determine the temperature of cooler.Control signal that is used to drive Defrost heater of heater block output.Control signal that is used for the drive compression machine of driven compressor parts output.The driving operation of cooling fan driver part control cooling fan.The driving operation of air curtain fan driver part control air curtain fan.Control assembly is according to the signal of determining parts from door open-close detection part and chiller temperature, by relatively chiller temperature and cooler reference temperature drive the air curtain fan driver part.
To achieve these goals, air curtain fan driving method of the present invention comprises:
(a) step of setting cooler reference temperature, this reference temperature is used to regulate the internal temperature of refrigerator;
(b), be used for the step of detecting gate open/close state if Defrost mode;
(c) if the temperature of cooler is lower than reference temperature, open air curtain fan; If perhaps door is being opened, close the step of air curtain fan;
(d) step of pass air curtain fan when door closes;
(e) Defrost mode when door closes, is checked the step that whether is in heated condition down;
(f),, open air curtain fan if when then the temperature of cooler is lower than reference temperature if heated condition; Otherwise close the step of air curtain fan;
(g), close the step of air curtain fan if not heated condition.
In air curtain fan driving method of the present invention,, when then having only the temperature of cooler to be lower than reference temperature, just drive air curtain fan, otherwise do not drive air curtain fan if door is being opened when detecting Defrost mode.
Therefore, when because the operation of Defrost heater is elevated to the temperature of cooler when being higher than predetermined temperature, even door is being opened, do not drive air curtain fan, the high temperature air by cooler can not flow in the refrigerating chamber thus yet.
In addition, if door closes when detecting Defrost mode, then when because the heating of Defrost heater when making the temperature of cooler be lower than reference temperature, drives air curtain fan.Utilized the cooling degree refrigeration of cooler owing under the situation that Defrost heater heats, drive air curtain fan, so can finish defrost operation quickly.Therefore, improved the efficient of defrost operation.In addition, when the temperature of cooler under the situation about heating at Defrost heater is higher than reference temperature, do not drive air curtain fan, thereby can avoid temperature of refrigerating chamber to raise.
Brief description of drawings
With reference to the accompanying drawings, can understand these and other purpose and feature of the present invention by following embodiment, wherein:
Shown in the block diagram of Fig. 1 is the conventional air curtain fan drive unit that is used for refrigerator;
Fig. 2 is the flow chart that is used for the operating process of key diagram 1 conventional air curtain fan drive unit;
Shown in the block diagram of Fig. 3 according to the embodiment of the invention, be used for the air curtain fan drive unit of refrigerator;
Fig. 4 is the flow chart that is used to illustrate according to the air curtain fan drive unit embodiment of the invention, that be used for refrigerator operating process.
Detailed description of preferred embodiment
Below, with reference to the accompanying drawings the air curtain fan drive unit according to the embodiment of the invention is described in detail.Shown in the block diagram of Fig. 3 is the air curtain fan drive unit 30 that is used for refrigerator according to the embodiment of the invention.
Device 30 comprises that chiller temperature determines parts 302, door open-close detection part 304, memory 306, heater block 308, driven compressor parts 310, cooling fan driver part 312, air curtain fan driver part 314, Defrost heater 316, compressor 318, cooling fan 320, air curtain fan 322, and control assembly 300.
Chiller temperature is determined the temperature of parts 302 definite coolers.
That the door that door open-close detection part 304 utilizes a predetermined on-off circuit to detect refrigerator is being opened or the pass.
In memory 306, set a reference temperature, it is used to regulate the internal temperature of refrigerator.
Control assembly 300 is controlled from the signal of each parts input and by exporting prearranged signals according to internal processes and is controlled the general operation of refrigerator.
Heater block 308 is according to the control signal that is used to drive Defrost heater 316 from the control signal output of control assembly 300.
Driven compressor parts 310 are according to the control signal from control assembly 300, and output is used for the control signal of drive compression machine 318.
The driving operation of cooling fan driver part 310 control cooling fans 314.
The driving operation of air curtain fan driver part 310 control air curtain fans 322.
Below with reference to Fig. 4 the driving method according to the air curtain fan of the embodiment of the invention is described in detail.Fig. 4 is the flow chart that is used to illustrate according to the refrigerator air curtain fan driving method of the embodiment of the invention.
When refrigerator was switched on, refrigerator carried out normal running under the control of control assembly 300, and mode of operation can change the type of cooling or Defrost mode (step S401) into.Under the type of cooling, compressor 318 cooling refrigerator inside.Under Defrost mode, Defrost heater 316 is removed the frost that is formed on the cooler.In addition, if refrigerator doors is opened, then control assembly 300 drives air curtain fan 322, if refrigerator doors is closed, then control assembly 300 stops air curtain fan 322.As a result, the temperature of cold compartment of refrigerator can remain between-1 ℃ to 5 ℃, and the temperature of refrigerating chamber can remain on-25 ℃.
The reference temperature Tr that regulates internal temperature of refrigerator with preordering method being used for of setting is kept at memory 306.For example, reference temperature Tr can be configured when making refrigerator by manufacturer, perhaps can anyly be configured when temperature required in that refrigerator temperature is set at by the user.
In step S402, during the refrigerator normal running, control assembly 300 checks whether be Defrost mode.
If Defrost mode, then in step S403, when door was opened, control assembly 300 received enabling signal from door open-close detection part 304.
In step S404, when door was being opened, the temperature and the reference temperature of 300 pairs of coolers of control assembly compared.If the temperature of cooler is lower than reference temperature Tr, then control assembly 300 is opened air curtain fan 322 (step S405).If control assembly 300 receives door from door open-close detection part 304 when closing signal, then control assembly 300 closes air curtain fans 322 (step S407).
In step S403, if door closes when Defrost mode, then whether control assembly 300 is checked at heated condition.
In step S411, if at heated condition, then control assembly 300 is with the temperature of cooler compare with reference temperature (step S411).
In step S412, if the temperature of cooler is not less than reference temperature, then control assembly 300 makes air curtain fan close (step S407).In step S412, if the temperature of cooler is lower than reference temperature, then control assembly 300 makes air curtain fan open (step S413), and repeats step S412 and step S413.That is to say, if the temperature of cooler is lower than reference temperature during the heated condition, just then control assembly 300 is opened air curtain fan.Simultaneously, if if the temperature of cooler is not less than reference temperature or heater is closed, then control assembly 300 closes air curtain fan.
If air curtain fan closes, then refrigerator returns its normal operating state (step S410).
In air curtain fan driving method of the present invention, open if detect the Defrost mode Xiamen, then only when the temperature of cooler is lower than reference temperature, just drive air curtain fan, otherwise do not drive air curtain fan.
Therefore, when the operation by Defrost heater is elevated to the temperature of cooler to be higher than predetermined temperature, even door is opened, do not drive air curtain fan, the high temperature air by cooler can not flow in the refrigerating chamber thus yet.
In addition, if door closes when detecting Defrost mode, then, then drive air curtain fan when still being lower than reference temperature by the heating of Defrost heater, the temperature of cooler.Can utilize the cooling degree of cooler owing under the situation of Defrost heater heating, drive air curtain fan, so can finish defrost operation quickly.Therefore, improved defrost operation efficient.In addition, under situation about heating at Defrost heater, the temperature of cooler is higher than reference temperature, does not then drive air curtain fan, can avoid temperature of refrigerating chamber to raise like this.
Should be appreciated that under the situation that does not deviate from the scope of the invention and design various for the person of ordinary skill of the art other modification are all apparent also can be easy to realize.Therefore, the scope of institute of the present invention accessory claim is not limited to this specification, but has comprised the novel features of all patentabilities of the present invention, comprises that those skilled in the art think all features of equivalent features.
Claims (2)
1. air curtain fan drive unit that is used for refrigerator comprises:
Be used to detect the door open-close detection part of refrigerator door open-close state;
The chiller temperature that is used for definite chiller temperature is determined parts;
Be used to export the heater block of the control signal that drives Defrost heater;
Be used to export the driven compressor parts of the control signal of drive compression machine;
Be used to control the cooling fan driver part that cooling fan drives operation;
Be used to control the air curtain fan driver part that air curtain fan drives operation; And
Control assembly is used for according to the signal of determining parts from door open-close detection part and chiller temperature, by relatively chiller temperature and cooler reference temperature drive the air curtain fan driver part.
2. air curtain fan driving method that is used for refrigerator may further comprise the steps:
(a) step of setting cooler reference temperature, this reference temperature is used to regulate the internal temperature of refrigerator;
(b), be used for the step of detecting gate open/close state if Defrost mode;
(c) if the temperature of cooler is lower than reference temperature, open air curtain fan; If perhaps door is being opened, close the step of air curtain fan;
(d) when door closes, close the step of air curtain fan;
(e) Defrost mode is checked the step that whether is in heated condition down when door closes;
(f),, open air curtain fan if when then the temperature of cooler is lower than reference temperature if heated condition; Otherwise close the step of air curtain fan;
(g), close the step of air curtain fan if not heated condition.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980046141A KR100308529B1 (en) | 1998-10-30 | 1998-10-30 | Method and apparatus for driving an air curtain fan for a refrigerator |
| KR1998/46141 | 1998-10-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1322292A true CN1322292A (en) | 2001-11-14 |
| CN1131980C CN1131980C (en) | 2003-12-24 |
Family
ID=19556379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN988142945A Expired - Fee Related CN1131980C (en) | 1998-10-30 | 1998-12-24 | Air curtain fan driving device and method for refrigerator |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6058722A (en) |
| KR (1) | KR100308529B1 (en) |
| CN (1) | CN1131980C (en) |
| GB (1) | GB2359127B (en) |
| WO (1) | WO2000026588A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435042A (en) * | 2011-10-28 | 2012-05-02 | 合肥美的荣事达电冰箱有限公司 | Control method of draught fan of refrigerator compartment |
| WO2014198152A1 (en) * | 2013-06-14 | 2014-12-18 | 海尔集团公司 | Electric refrigerator |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000329445A (en) * | 1999-05-20 | 2000-11-30 | Hoshizaki Electric Co Ltd | Low temperature storage chamber |
| US6401466B1 (en) * | 2000-03-14 | 2002-06-11 | Donald Olsen | Door monitor apparatus for interrupting and restoring walk-in refrigeration system operation and alarm monitoring system therefor |
| US6595429B1 (en) * | 2002-04-03 | 2003-07-22 | Asi Technologies, Inc. | Apparatus and method for providing continuous real-time conditioned air curtain |
| KR100474329B1 (en) * | 2002-05-07 | 2005-03-08 | 엘지전자 주식회사 | Compressor driving control method of refrigerator |
| US20040163401A1 (en) * | 2003-02-26 | 2004-08-26 | Alahyari Abbas A. | Refrigerated display merchandiser with improved air curtain |
| GB0300729D0 (en) * | 2003-01-14 | 2003-02-12 | Clark Door Ltd | Conditioned vestibule for a cold storage doorway |
| US6722142B1 (en) * | 2003-02-07 | 2004-04-20 | Sub-Zero Freezer Company, Inc. | Refrigerated enclosure |
| US6775994B1 (en) * | 2003-02-25 | 2004-08-17 | Carrier Commercial Refrigeration, Inc. | Refrigerated display merchandiser with variable air curtain |
| US7022104B2 (en) * | 2003-12-08 | 2006-04-04 | Angioscore, Inc. | Facilitated balloon catheter exchange |
| CA2499090A1 (en) * | 2004-03-02 | 2005-09-02 | Asi Technologies, Inc. | Air curtain doorway |
| EP1806992A1 (en) * | 2004-09-30 | 2007-07-18 | Carrier Corporation | Curtain air admission assembly |
| JP4954484B2 (en) * | 2005-03-08 | 2012-06-13 | ホシザキ電機株式会社 | Cooling storage |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2558997A (en) * | 1949-08-09 | 1951-07-03 | Automatic Screw Products Compa | Means for preventing loss of cold air from refrigerated spaces |
| US4299092A (en) * | 1979-12-07 | 1981-11-10 | Tyler Refrigeration Corporation | Energy conserving refrigerated merchandiser display case |
| US4327557A (en) * | 1980-05-30 | 1982-05-04 | Whirlpool Corporation | Adaptive defrost control system |
| ATE6544T1 (en) * | 1980-06-05 | 1984-03-15 | Jae-Wha Rhee | REFRIGERATOR. |
| KR960001985B1 (en) * | 1991-06-07 | 1996-02-08 | 삼성전자주식회사 | Refrigerator |
| KR0182534B1 (en) * | 1994-11-17 | 1999-05-01 | 윤종용 | Defrosting device and its control method of a refrigerator |
| US5791152A (en) * | 1997-06-06 | 1998-08-11 | Daewoo Electronics Co., Ltd. | Refrigerator having a device for generating an air curtain and method for controlling an air curtain generating operation |
-
1998
- 1998-10-30 KR KR1019980046141A patent/KR100308529B1/en not_active IP Right Cessation
- 1998-12-24 GB GB0110267A patent/GB2359127B/en not_active Expired - Fee Related
- 1998-12-24 WO PCT/KR1998/000457 patent/WO2000026588A1/en active Search and Examination
- 1998-12-24 CN CN988142945A patent/CN1131980C/en not_active Expired - Fee Related
- 1998-12-28 US US09/221,131 patent/US6058722A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435042A (en) * | 2011-10-28 | 2012-05-02 | 合肥美的荣事达电冰箱有限公司 | Control method of draught fan of refrigerator compartment |
| WO2014198152A1 (en) * | 2013-06-14 | 2014-12-18 | 海尔集团公司 | Electric refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0110267D0 (en) | 2001-06-20 |
| CN1131980C (en) | 2003-12-24 |
| WO2000026588A1 (en) | 2000-05-11 |
| GB2359127A (en) | 2001-08-15 |
| KR20000028026A (en) | 2000-05-15 |
| US6058722A (en) | 2000-05-09 |
| GB2359127B (en) | 2003-08-13 |
| KR100308529B1 (en) | 2002-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20030105 Address after: Seoul City, Korea Applicant after: Daewoo Electronics Co., Ltd. Address before: Seoul Applicant before: Daewoo Electronics Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031224 Termination date: 20131224 |